Home / 27,585.50-41,390.40-9,117.50

Finding the Fourth Proportional to 27,585.50, 41,390.40 and 9,117.50

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Solution

The fourth proportional to 27,585.50, 41,390.40 and 9,117.50 is: 13,680.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,585.50 : 41,390.40 = 9,117.50 : x
  2. Step 2: Convert to fraction form
    27,585.50/41,390.40 = 9,117.50/x
  3. Step 3: Cross multiply
    27,585.50x = 41,390.40 × 9,117.50
  4. Step 4: Simplify right side
    27,585.50x = 377,376,972
  5. Step 5: Solve for x
    x = 377,376,972/27,585.50
  6. Step 6: Final answer
    x = 13,680.27

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.